Omeprazole is a proton pump inhibitor (PPI) that lowers the amount of acid your stomach makes. Doctors prescribe it for heartburn, ulcers, and other acid problems.
What Is Omeprazole Used For?
- Gastroesophageal reflux disease (GERD) and heartburn
- Stomach and duodenal ulcers
- Erosive esophagitis
- Helicobacter pylori treatment, together with antibiotics
- Protecting the stomach in people who take NSAIDs
- Zollinger-Ellison syndrome
How Does Omeprazole Work?
Omeprazole blocks the proton pump, which is the enzyme in the stomach lining that makes acid. With less acid, ulcers heal, and heartburn improves.
General Dosage Information
This is general information only. Your doctor sets the right dose for you, so follow your prescription and the label.
- Adults usually take 20 mg once a day, 30 to 60 minutes before breakfast.
- Treatment usually lasts four to eight weeks, and over-the-counter courses last 14 days.
- Swallow the capsule whole.
Side Effects of Omeprazole
Common Side Effects
- Headache
- Nausea, diarrhea, or constipation
- Stomach pain and gas
- Dizziness
Serious Side Effects
Call your doctor or get emergency help if you notice:
- Severe or ongoing diarrhea, which can signal a C. difficile infection
- Low magnesium: muscle cramps, irregular heartbeat, or seizures
- Bone fractures with long-term use
- Signs of kidney problems
Who Should Be Cautious?
- People who need to take it for a long time, who need regular checks
- People with liver disease
- Older adults
- Pregnant or breastfeeding women should ask their doctor
Drug Interactions
Tell your doctor and pharmacist about every medicine and supplement you take. Examples of important interactions include:
- Clopidogrel: omeprazole can lower its effect, so doctors often choose another PPI.
- Methotrexate: omeprazole can raise its level.
- Warfarin and digoxin: levels can change.
- Ketoconazole and itraconazole: omeprazole lowers their absorption.
- Atazanavir: omeprazole lowers its absorption.
Storage and Precautions
- Store it at room temperature, away from heat, light, and moisture.
- Keep it out of the reach of children.
Frequently Asked Questions
When should I take it?
Take it 30 to 60 minutes before breakfast.
Can I take it for years?
Only if a doctor advises it. Long-term use needs regular review.
Will it stop heartburn right away?
It can take one to four days to work fully.
Disclaimer: This article is for information only. It is not medical advice. Please talk to your doctor about your own health.